Question

Bob, Jill, Kim, and Steve measure an object's length, density, mass, and brightness, respectively. Which student must derive a unit of measurement?

A. Bob

B. Jill

C. Kim

D. Steve

***I think it is either Bob or Jill?? Idk, please explain!! thank you :)

Answer 1

length would be measurements like meters, inches, etc

density would be things like g/m^3

mass would be things like grams

brightness ....not 100% sure, but I think they use candelas here as a unit

Answer 2

yeah, brightness is candelas i believe :)

Answer 3

cuz candelas are the units of light intensity :)

Answer 4

the only one that's using a compound measurement (ie it's made of two different types of measurements) is density

Answer 5

so the answer is Jill ??
because of what u said?

Answer 6

there is no true density unit....it's a combo of two other units (grams and cubic meters)

Answer 7

so yes Jill

Answer 8

ohhh and because of that, my answer is B. Jill ?

Answer 9

yes

Answer 10

ohhh haha okay :) u posted right when i posted lol :)

Answer 11

awesome! thanks :) and the explanation was really good :)

Answer 12

yw